Yep I know. Not concerned about heat. Both of those CPUs run cooler than the i7 960 I just sold and my coolers did the trick fine there. My concern lies with the board and if it can provide enough power to the 2500k with only 4pins. The 3570k uses less power but is not as good an oc'r compared to the 2500k. From what you say and from what others have said the 2500k is the best option but the 3570k would probably do just as well with mild oc on this board correct? I got a good deal on this board. I can probably upgrade it in a few months and get a z77 or better z68 to do some proper oc.